Versus

Cos De BAHA Niacinamide 10% Serum Versus Tosowoong Niacinamide 15% Face Serum

Serum
Serum
Korean Brand South Korea
Korean Brand South Korea

Updated on February 14, 2025

Overview

What they are

These products are both fungal acne (malassezia) safe and reef safe serums. They have a total of 5 ingredients in common

Cool Features

They both contain niacinamide

Suited For

They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

Ingredient Info

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Key Ingredients

Benefits

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Solvent

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin. 

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol
Smoothing

Niacinamide has emerged as an all-star ingredient due to its many benefits.

It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.

Other benefits include smoothing wrinkles and minimizing redness.

The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.

When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.

Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.

Learn more about Niacinamide
Skin Conditioning, Solvent

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. 

It is a:

  • Humectant, drawing moisture into the skin
  • Emollient, helping to soften skin
  • Solvent, dispersing and stabilizing formulas
  • Preservative booster, enhancing the antimicrobial activity of other preservatives 
Humectant, Skin Conditioning

Zinc PCA (or "zinc salt") differs slightly from zinc itself. PCA stands for pyrrolidone carboxylic acid. However, Zinc PCA comes from zinc.

It can help reduce redness, regulate sebum, and promote the general healing process of the skin.

Zinc PCA tends to be especially useful for those with oily, acne-prone skin. It's certainly an ingredient worth trying out!

Learn more about Zinc PCA
Skin Conditioning, Skin Protecting, Soothing

Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.

Some studies have shown this ingredient can promote wound healing with higher concentrations.

Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.

Learn more about Allantoin

When to use

97 Routines
45% use in am
55% use in pm
97% use every day
When to use See routines that use it ->
4 Routines
50% use in am
50% use in pm
100% use every day

Reviews

Here's what our community thinks

Cos De BAHA Niacinamide 10% Serum 15 ingredients

2.0 /5
from 1 rating
Broke Me Out (1) Doesn't Work (1) Great Value (1)
Oop's avatar

Maddie

1 month ago
Review

Not good, I started using this around December of last year and stopped in the beginning of January this year when I noticed that there were tiny red bumps all over my face (particularly on my cheeks).

This was the only new product I was using in my routine and nothing else was changed. After I stopped using this and returned back to my original skin are routine, the tiny red bumps disappeared Show more

#great value
#broke me out
#no scent
#doesn't work

Tosowoong Niacinamide 15% Face Serum 10 ingredients

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